Controlling vibration of woofer baskets

What about Mortite, or is that too old school?

I've used it on stamped frame Jensen guitar amp speakers with varied results.

Humbucking P/U guitars sounded better, but single ended Fender Strats lost some of their "chime" quality.

DeKay

Funny I use Mortite to adjust the mass on passive radiators when I do the initial set up. Seal drivers and it doubles for plumbers putty in a pinch.

Now you know what they forgot on Apollo 13, the Mortite. I know they had duct tape. Maybe if they would have used the Mortite they wouldn’t have had to use the duct tape to get back. I’m pretty sure Mortite will be in Heaven too. LOL

Regards

VMPS Super Towers were my younger self’s idea of the greatest speaker ever.

Monkey coffin extraordinaire....

His quasi-12/quasi-18 crossovers are actually a very good idea, when properly executed.

Try JB Weld epoxy

I still use his RM30s, and have STII SE, and QSO 808s.
I also have a pair of RMx Elixirs that are all tricked out.

Planars and ribbons, I been using them over 40 years.

The 808s are used every day with a MX110z and a MC225. It all looks like it just came off the the show room floor. The room though looks like Dr. Frankenstein's Lab.

Regards